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Prim Care Respir J. 2009 Mar;18(1):34-40. doi: 10.3132/pcrj.2008.00047.

Diagnostic certainty, co-morbidity and medication in a primary care population with presumed airway obstruction: the DIDASCO2 study.

Author information

1
Department of General Practice, K.U.Leuven, Leuven, Belgium. johan.buffels@med.kuleuven.be

Abstract

STUDY OBJECTIVES:

To document the rate of diagnostic certainty, co-morbidity and use of medication in patients with presumed obstructive airway disease (OAD) in a primary care setting.

METHODS:

Twenty-six general practitioners (GPs) were asked to select the last 50 contacts with patients older than 40 years of age who were taking bronchodilators and/or inhaled corticosteroids or who had known OAD. After reviewing their medical data on file, the GPs gave their diagnostic opinion and rated their certainty about the diagnosis using a Likert-type scale.

RESULTS:

Analysis of 1126 files revealed that in at least 523 patients (46.4%), a diagnostic work-up was judged necessary. The GPs judged that 6% of the patients had no OAD. Less than 33% of the study population underwent spirometry during the two years preceding the survey. The number of co-morbid conditions was on average 2.2 for patients with asthma and 3.2 for patients with COPD. Patients with presumed COPD took significantly more drugs (mean, 5.1; 95% CI, 4.8-5.3) than did patients with other diagnostic labels (mean, 4.6 95%; CI, 4.4-4.8).

CONCLUSIONS:

We confirmed the underuse of spirometry as a diagnostic tool in presumed airway obstruction in primary care. Nearly half of the patients older than 40 years who were taking bronchodilators and/or inhaled corticosteroids needed a diagnostic work-up. This population had a high prevalence of co-morbidity and polypharmacy.

PMID:
18701969
DOI:
10.3132/pcrj.2008.00047
[Indexed for MEDLINE]
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